League\CommonMark\Inline\Renderer\EmphasisRenderer::render PHP Method

    public function render(AbstractInline $inline, ElementRendererInterface $htmlRenderer)
    {
        if (!$inline instanceof Emphasis) {
            throw new \InvalidArgumentException('Incompatible inline type: ' . get_class($inline));
        }
        $attrs = [];
        foreach ($inline->getData('attributes', []) as $key => $value) {
            $attrs[$key] = $htmlRenderer->escape($value, true);
        }
        return new HtmlElement('em', $attrs, $htmlRenderer->renderInlines($inline->children()));
    }